A skeletal muscle is composed of several components bundled one into the other. At which structural level in the muscle does contraction occur to bring about contraction in the whole muscle? A. myofibril B. muscle fiber C. myoneural junction D. tendon E. fascicle
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Myofibrils contain the contractile units called sarcomeres, which are responsible for muscle contraction. When sarcomeres contract, they cause the myofibrils to contract, which in turn causes the muscle fibers to contract, ultimately leading to the contraction of Show more…
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